// miner's coin base reward based on nHeight
int64 GetProofOfWorkReward(int nHeight, int64 nFees, uint256 prevHash)
{
    int64_t nSubsidy = 0 * COIN;

    if (nHeight == 0)
        nSubsidy = 16 * COIN; // genesis block coinbase is unspendable
    else if (nHeight <= 10)
nSubsidy = 23300 * COIN; // Blocks 1-10 are premine
    else if (nHeight <= 260)
        nSubsidy = 16 * COIN; // 4 hr Low Reward Period for Fairness
    else if (nHeight <= 1700)
        nSubsidy = 8000 * COIN;
    else if (nHeight <= 3140)
        nSubsidy = 4000 * COIN;
    else if (nHeight <= 4580)
        nSubsidy = 2000 * COIN;